GB 23712-2009Electrical equipment of industrial machines -- Electromagnetic compatibility -- Emission limits for machine tools (English PDF)

4.1 Basic System Configuration

The basic configuration of the system consists of (see FIG. 1).

--- power supply part;

--- the control circuit, and a protection circuit device;

--- a basic power or power control and/or adjustment is performed a plurality of conversion units (example. drive assembly);

--- one or more of the actuator and its associated transducer;

--- the control and processing systems, for example. NC controller, a programmable logic controller (PLC) and its associated peripheral devices, programming and debugging

Test tools, test equipment and man-machine interface;

--- peripherals (including the converter, operating station, emergency stop devices, etc.);

--- driven by actuator means and the moving member.

System configuration FIG 1 and Example port

4.2 Test Method

Type test machine finished product is a standard method of conformity assessment. However, in the conventional EMC test site, in whole entire machine

Test, only technically feasible, but economically only on a limited number of machines possible. Since the weight of the machine and the machine type can be tested,

Size, the high cost of the operation or testing, trial delays, etc., can not be the whole of the machine in a conventional type test EMC test site, both

We should distinguish between.

In addition, the machine needs to be considered a single production model range, as well as the expansion and retrofit situations.

We should distinguish and note the following.

--- can type testing machine;

--- not type testing machine;

--- a variety of models machine;

--- modifications, additions and expansion of the machine.

Conformity assessment procedures following each test a pilot or experiment with different combinations based on.

--- type tests carried out in the EMC test site;

--- visual inspection of the whole machine;

--- for the whole machine additional testing. 2)

2) This test is usually carried out in the manufacturer's production site.

Measuring electromagnetic emissions 5

Measuring the electromagnetic emission requirements should be GB 4824-2004 and GB/T 6113-2008 performed.

Here the content of the above criteria will not be repeated. This standard gives the desired product or additional modifications in the specific application related measurement procedures

information.

Note. they meet the predetermined measurement GB GB/T 6113-2008 4824-2004 and these conditions also included in the measurement field.

5.1 Classification and measurement procedures

Electromagnetic emission measurement procedure is given in the following articles. Summary flowchart of measurement procedure in Appendix E.

5.1.1 free electromagnetic machine or components associated elements

If the machine does not contain elements or components associated electromagnetic, no test.

For example. the machine containing only squirrel cage motor as electromechanical switches and like components.

5.1.2 related elements or components comprising an electromagnetic machine

When the electromagnetic machine comprising the relevant elements or components, such as electronic components and a power control unit (sub-devices and subsystems, etc.) should be performed

Wherein a program specified in Table 1 below. Test procedure chosen by the manufacturer according to the characteristics of the machine.

Table 1 Measurement Program

Test Procedure

A test program

(Applies to the entire machine)

Test Procedure B

(Applies to the entire electrical system)

Test Procedure C

(For electrical or electromechanical components)

Type Test Required Required Required

Visual inspection of the whole machine does not require claim required

A machine does not require additional test requirements are not required

These tests are usually performed in a manufacturer's production site.

5.1.2.1 A test program

Machine electromagnetic emission requirements of this standard should be measured (see Table A.1 5.2 ~ 5.4 and Appendix A).

During the trial, should be operating the machine's manufacturing requirements.

5.1.2.2 Test Procedure B

When the analog functions specified by the manufacturer shall be specified in this electromagnetic emission testing requirements entire electrical system of the machine (see

5.2 to 5.4, Table A. 1 and Appendix B).

5.1.2.3 Test Procedure C

C. to perform the test program after the machine manufacturer should properly be split into components

After assembly of the machine is split, to transmit electromagnetic machine, the manufacturer should be classified as being associated with various components of the electromagnetic or unrelated

Components.

Not associated with electromagnetic components do not need to test.

For components associated with electromagnetic according to the following test steps.

a) determining which power port and which port or assembly machine connected to the interface (Table C.1 in Appendix C);

b) The whole machine is used as the external port of all components of the power supply port, shall be tested;

c) housing all the components of the port to the port connected to the housing of the machine;

d) The electromagnetic emission to be components of the test requirements of this standard (see 5.2 to 5.4, and Appendix Table A.1 C) in accordance with electromagnetic or hair

Fire-related standards.

Note. The component manufacturer's declaration of its components comply with EMC regulations, the machine manufacturer does not have to repeat the test.

5.2 EUT configuration

During the test, the external port is not used (signal/control port) should be connected to the cable length 1.5m.

Only commissioning, maintenance and repair purposes accessible external ports, regardless of the time of measurement.

NOTE. When using in GB 4824-2004 6.4.1 Interconnecting cables, should also be considered for the above.

5.1.2.1 ~ 5.1.2.3 accordance with the requirements and the corresponding appendices, to be measured on the machine or components associated port.

When configured auxiliary equipment or machine component to be connected for operation to be measured is the minimum, or to deal with the machine components.

Auxiliary equipment components are not machine, but which are necessary for the operation of the machine equipment, such as programming devices.

During the measurement, all devices to be actuated (e.g., mounted in the machine and the machine will affect the electromagnetic emission. automatic tool changer, the whole

Workpiece-handling device, etc.).

Note. All of the test device-independent, for example, a chip conveying device, cooling equipment, automatic bar loaders and feeding system, not currently required tests.

And it should be measured at the nominal supply voltage and frequency in a particular machine or typical range of environments.

Below the maximum reference setting should be used, the preferred level of about 50% is provided.

5.2.1 A device configuration program ---

The machine should be completely configured and assembled. In the sense of a worst-case configuration, the choice of the largest number of machines equipped with axes,

Spindle turret, and other components suitable for modular machine available.

During the test, the machine should be ready for use, including to completely install and closed the base of the machine, close the electrical control box and a work area of prevention

Protection devices.

During the test, the machine should be in idle mode, typically run machining program (eg. step procedure, cycle time, speed, power, torque, must

Delta temperature and temperature of the heating element), operate in a repetitive manner. Some machines (such as laser processing machine) to operate under the processing conditions

In order to meet the requirements.

The working cycle, each component should be selected and a driver associated with EMC through the machine. Also, to simulate the actual cutting machine

condition. Unavailable or impractical assumed feedrate and NC particular test modes (e.g., "dry run").

Note. the test cycle is usually the part program machine manufacturer, in order to check the accuracy of a machine tool or function, the rich practical procedure according to the manufacturer of the machine

Experience in the preparation, and long-term use.

5.2.2 device configuration procedure B ---

During the test, when the usual operation to simulate a particular function described by the manufacturer, the typical mode of operation of the machine to determine the

Bed package electrical system (apparatus).

A typical machine test conditions are as follows.

--- loop simulation is performed for all operations associated with the electromagnetic elements or components;

--- setting different levels of functionality, for example. program step, the cycle time, speed, power, torque, temperature and the absolute temperature of the heat increment

element.

Type and length of cable jacket laying connecting cables should be consistent with the actual machine.

5.2.3 Device Configuration --- C program

Test conditions assemblies should be compatible with the major functional components to perform.

Parts of the configuration and loading should be reasonable (see Test Plan).

Cables used during the test shall be specified in a separate type device claims.

5.3 Type test different configurations of the machine

According to the task to be performed by different machines have different configurations. These configurations are completely derivative of formula or complex configuration. Manufacturers (installed

With or integrator) can simplify their work in the case of full compliance with this standard down by the following method.

Manufacturers should try to define most likely to cause maximum electromagnetic emissions EMC configuration. Classification shall typical configuration shown and 5.1

Test Method defined, so that other configurations may be included within the scope. This test should be assessed technical support documents (such as electrical display

And a block diagram of electromechanical components and associated interconnections).

If the above-described exemplary configuration, according to the test procedures and test arrangements 5.1.2 and 5.2 of the test requirements of this standard,

Then the other configuration is to be assessed, it may also be deemed to meet the requirements of this standard, without additional testing.

When the manufacturer has been assessed through the modified machine configurations, in accordance with Table 2 of the new machine configuration derivatives were assessed to see if it can be

A typical configuration for the new.

Method Table 2 Evaluation of different machine configurations

Status of the machine approach

Single configuration or a different configuration of the machine according to 5.1 and 5.2, a typical test configuration of the machine (worst-case configuration EMC)

Modified with elements not related to the machine through the electromagnetic machine is considered to meet the test requirements related to electromagnetic emissions, without test

Modification element associated with the machine through the electromagnetic

Re-assess the effectiveness of a typical configuration. If not, then by 5.1 and 5.2 test new

A typical configuration of the machine

"Worst case" may use different combinations, simply the limited condition identification of the test or both. "Worst case" is often the most complex

Derivative.

5.4 test plan and test report

5.4.1 Test Plan

Suggestions to be tested in accordance with EMC EMC test plan agreed by the parties.

EMC test plan is to practice a specific product, service, contracts or other projects activities, resources and sequence of operations and the development of a file.

Configuration, operation and performance of the equipment under test (the EUT) and the auxiliary equipment and program basic information is performed in EMC tests. In addition, in the open test

Before beginning the operation of the EUT responsibilities should be developed (see Appendix D).

5.4.2 Test Report

The test report shall include at least the following information.

--- manufacturer or its representative, and an identification of the test product;

--- it has been assessed machine function;

--- For the test procedure and C is assessed through the functional components associated with the solenoid;

--- divided signals, power control and identification of the three categories of ports;

---Operating conditions;

--- is adapted to simulate the cycle test conditions employed;

--- environmental conditions;

--- Description test facilities and instruments to be used;

--- test antenna distance, and the position of the reference point;

Description --- (e.g., photograph) of the test configuration;

--- the EUT description, the cable (type, length, and connectors), and an auxiliary device;

--- EUT operation mode;

---test results.